ViaSat Ex Parte Subm

SUPPLEMENT submitted by ViaSat, Inc.

Supplemental Submission

2013-01-24

This document pretains to SES-LIC-20120427-00404 for License on a Satellite Earth Station filing.

IBFS_SESLIC2012042700404_982449

                                                                    555 Eleventh Street, N.W., Suite 1000
                                                                    Washington, D.C. 20004-1304
                                                                    Tel: +1.202.637.2200 Fax: +1.202.637.2201
                                                                    www.lw.com

                                                                    FIRM / AFFILIATE OFFICES
                                                                    Abu Dhabi       Moscow
                                                                    Barcelona       Munich
                                                                    Beijing         New Jersey
                                                                    Boston          New York
                                                                    Brussels        Orange County
January 24, 2013                                                    Chicago         Paris
                                                                    Doha            Riyadh
                                                                    Dubai           Rome
                                                                    Frankfurt       San Diego
VIA ELECTRONIC FILING                                               Hamburg         San Francisco
                                                                    Hong Kong       Shanghai

Ms. Marlene H. Dortch                                               Houston         Silicon Valley
                                                                    London          Singapore
Secretary                                                           Los Angeles     Tokyo
Federal Communications Commission                                   Madrid          Washington, D.C.
445 Twelfth Street, S.W.                                            Milan

Washington, D.C. 20554



                Re:     Ex Parte Submission of Supplemental Information; IBFS File Nos. SES-
                        LIC-20120427-00404; SES-STA-20120815-00751, Call Sign E120075

Dear Ms. Dortch:

       ViaSat, Inc. submits information to supplement the above-referenced applications
seeking authority to operate a Ka band aeronautical earth station (“AES”) network
(“Applications”).

        Coordination Letters

         In order to expedite the processing of its Applications, enclosed as Exhibit 1 are copies of
letters from satellite operators evidencing that the operation of this ViaSat AES network
successfully has been coordinated with all potentially affected satellite networks: O3b’s NGSO
Ka band network, and the Ka band GSO networks of Hughes Network Systems, SES,
DIRECTV, Intelsat, EchoStar, Dish, Telesat, and Bell Canada.1 Thus, ViaSat has coordinated its
proposed operations with all Ka band satellite networks that operate (or are expected within the
next few years to operate) on a co-frequency and co-coverage basis with ViaSat’s satellite points
of communication (i.e., ViaSat-1 at 115.1º W.L.; WildBlue-1 and Anik-F2 at 111.1º W.L.), and
are located within +/-30º of those points of communication.

        Data Logging Capabilities

       ViaSat currently intends to log and maintain records of the following data for AES
transmissions: aircraft location (latitude, longitude, altitude); aircraft velocity; aircraft attitude


1
        Bell Canada indicates that it is authorized to operate a Ka band satellite network at 82º
        W.L.


DC\2376416.3


Ms. Marlene H. Dortch
January 24, 2013
Page 2




(pitch, yaw, roll); transmit channel group;2 EIRP density; and satellite used for the
communication. The logged data also would include any instances when the AES terminal
pointing error exceeds the inhibit limits (0.5 degrees azimuth and 1.35 degrees elevation, or 60
degree combined bank and skew). These data will be more than adequate to ensure that any
concerns about the source of suspected interference into other spacecraft can be ascertained (and
then addressed).

        As to the timing interval of logging, the Commission has adopted rules requiring Ku band
AES licensees to collect data at one minute time intervals and maintain that data for “rolling”
one-year periods.3 The Commission already has determined that logging AES data at one-
minute intervals is more than adequate to ascertain the location of an aircraft and identify a
particular terminal as the source of an RF transmission that is suspected to be a source of
interference.4 This is true regardless of the transmit frequencies used.

          Off-Axis EIRP Density Plots

        ViaSat’s October 15, 2012 notice of ex parte presentation (“October 15th Ex Parte
Notice”) included plots illustrating the AES antenna transmit performance. Specifically, the
plots depict the areas where the EIRP emitted by the grating lobes of the antenna potentially
could exceed the Section 25.138 spectral power density mask (under certain operating
conditions). Enclosed as Exhibit 2 is a revised version of one of those plots that includes a
legend and additional clarifying notations.




2
          As described in ViaSat’s December 17, 2012 ex parte submission, the SurfBeam 2
          architecture uses MF-TDMA and can change transmit frequency and symbol rate every
          40 ms within a given 62 MHz wide grouping of channels. The channel bandwidth of a
          given transmission can be determined by knowing the EIRP density of the transmission
          and the identified frequency range within which the transmission occurred.
3
          Revisions to Parts 2 and 25 of the Commission’s Rules to Govern the Use of Earth
          Stations Aboard Aircraft Communicating with Fixed-Satellite Service Geostationary-
          Orbit Space Stations Operating in the 10.95-11.2 GHz, 11.45-11.7 GHz, 11.7-12.2 GHz
          and 14.0-14.5 GHz Frequency Bands, IB Docket No. 12-376, Notice of Proposed
          Rulemaking and Report and Order, FCC 12-161 ¶ 89 (rel. Dec. 28, 2012) (“ESAA
          Order”).
4
          ESAA Order at ¶ 89 (“Given the rapid rate at which motion and direction could change
          within the ESAA systems, ESAA licensees will be required to collect this data on one
          minute time intervals.”).
          Prior to the ESAA Order, the Commission typically required Ku band AES licensees to
          record data both (i) at intervals of two minutes under normal flight conditions, and also
          (ii) at intervals of 30 seconds when aircraft roll angle is greater than 10 degrees during
          the first year of operation. See Row 44, Inc., 24 FCC Rcd 10223 ¶ 35 (2009); see also
          Panasonic Avionics Corporation, 26 FCC Rcd 12557 ¶ 26 (2011).


DC\2376416.3


Ms. Marlene H. Dortch
January 24, 2013
Page 3




        In addition, enclosed as Exhibit 3 is a copy of the map included in the October 15th Ex
Parte Notice revised to include a legend for the contours illustrated on that map. The contours
denote the geographic areas where the operation of an AES whose emissions at the grating lobes
that exceed the Section 25.138 mask (under worst case operating conditions) theoretically could
affect a particular GSO satellite at this specific location (77° W.L.). The different colored
contours represent the potential effect quantified as a ΔT/T level. As depicted on that map, the
resulting ΔT/T in this case would not be expected to exceed 0.5% because the operating areas
where the AES transmissions would have to originate to produce a greater ΔT/T level are
entirely outside of the coverage areas of the spacecraft that would serve this AES network (i.e.,
the identified areas over the Pacific Ocean and Canada are outside the service area of ViaSat-1,
WildBlue-1 and Anik-F2).

                                          * * * * * * *

          Please contact the undersigned if you have any questions regarding this submission.

                                                Respectfully yours,

                                                   /s/

                                                John P. Janka
                                                Elizabeth R. Park

Enclosures (Exhibits 1, 2, 3)

cc:       Robert Nelson
          Andrea Kelly
          Stephen Duall
          William Bell
          Howard Griboff
          Paul Blais
          Joseph Hill
          Byung K. Yi
          Alyssa Roberts
          Kathyrn Medley
          Kal Krautkramer
          Cindy Spiers
          Hsing Liu
          David Keir, Counsel to Row 44, Inc.




DC\2376416.3


Exhibit 1




October 12, 2012


Federal Communications Commission
445 12th Street, SW
Washington, DC 20554

Attn: International Bureau


Re: Engineering Certification of DIRECTV


This letter certifies that DIRECTV is aware that ViaSat, Inc. (“ViaSat”) is seeking authority from
the Commission to operate up to 4,000 technically identical transmit/receive earth stations
mounted on aircraft using the 28.35-29.1 GHz and 29.5-30.0 GHz bands for uplink transmissions
and the 18.3-19.3 GHz and 19.7-20.2 GHz bands for downlink transmissions. These earth
stations will communicate with ViaSat-1 at 115.1º W.L., WildBlue-1 at 111.1º W.L., and
ANIK-F2 at 111.1º W.L., pursuant to the technical parameters described in ViaSat’s application,
IBFS File No. SES-LIC-20120427-00404, Call Sign E120075 (“ViaSat Application”). ViaSat
has also requested special temporary authority (“STA”) to operate five such aeronautical earth
station (“AES”) terminals pending the grant of the ViaSat Application. See IBFS File No. SES-
STA-20120815-00751 (“STA Request”).

DIRECTV is authorized to operate the Ka-band satellites listed in the table ybelow in all or parts
of the satellite uplink bands 28.35-28.6 GHz and 29.25-30.0 GHz and the satellite downlink
bands of 18.3-18.8 GHz and 19.7-20.2 GHz . DIRECTV is familiar with the technical and
operating parameters of the proposed AES terminals described in the ViaSat Application and the
STA Request. DIRECTV confirms that the operations proposed in the ViaSat Application and
the STA Request are not expected to cause unacceptable interference into the operations of the
networks listed in the table below.


             List of DIRECTV Ka-band satellites
Satellite Name                          Nominal Location (°W)
SPACEWAY 1                                       103
SPACEWAY 2                                        99
 DIRECTV 8                                       101
 DIRECTV 9S                                      101
 DIRECTV 10                                      103
 DIRECTV 11                                       99
 DIRECTV 12                                      103



                            Respectfully,


                            Jack Wengryniuk
                            Sr. Director, Spectrum Management and
                            Regulatory Affairs
                            DIRECTV








October 8, 2012

Federal Communications Commission
445 12th Street, SW
Washington, DC 20554

Attn: International Bureau

Re: Engineering Certification from Intelsat

This letter certifies that Intelsat is aware that ViaSat, Inc. (“ViaSat”) is seeking
authority from the Commission to operate up to 4,000 technically identical
transmit/receive earth stations mounted on aircraft using the 28.35-29.1 GHz
and 29.5-30.0 GHz bands for uplink communications and the 18.3-19.3 GHz
and 19.7-20.2 GHz bands for downlink communications, with Ka band
satellites, ViaSat-1 at 115.1º W.L., WildBlue-1 at 111.1º W.L., and ANIK-F2 at
111.1º W.L., and pursuant to the technical parameters described in ViaSat’s
application, IBFS File No. SES-LIC-20120427-00404, Call Sign E120075
(“ViaSat Application”). ViaSat has also requested special temporary authority
(“STA”) to operate five such aeronautical earth station (“AES”) terminals
pending the grant of the ViaSat Application. See IBFS File No. SES-STA-
20120815-00751 (“STA Request”).

Intelsat is authorized to operate and currently operates the Galaxy 28 satellite at
the 89º W.L. orbital location. Intelsat is familiar with the technical and
operating parameters of the proposed AES terminals described in the ViaSat
Application and the STA Request. Intelsat confirms that the operations
proposed in the ViaSat Application and the STA Request have been coordinated
with the Galaxy 28 satellite at the 89º W.L. and should not cause unacceptable
interference into the operations of this satellite network.

Respectfully,



Jose Albuquerque
Senior Director, Spectrum Strategy
Intelsat








    Telesat
1601 Telesat Court                                                                 EN2012-003
Ottawa, ON, Canada                                                            18 December 2012
K1B5P4                                                                                Via email




Federal Communications Commission
445 12th Street, SW
Washington, DC 20554

Attn: International Bureau

Re: Engineering Certification of Telesat

This letter certifies that Telesat is aware that ViaSat, Inc. ("ViaSat") is seeking authority from
the Commission to operate up to 4,000 technically identical transmit/receive earth stations
mounted on aircraft using the 28.35-29.1 GHz and 29.5-30.0 GHz bands for uplink
communications and the 18.3-19.3 GHz and 19.7-20.2 GHz bands for downlink
communications, with Kaband satellites, ViaSat-1 at 115.1° W.L., WildBlue-1 at 111.1° W.L.,
and ANIK-F2 at 111.1°W.L., and pursuant to the technical parameters described in ViaSat's
application, IBFS File No. SES-LIC-20120427-00404, Call SignE120075 ("ViaSat
Application"). ViaSat has also requested special temporary authority ("STA") to operate five
such aeronautical earth station ("AES") terminals pending the grant of the ViaSat Application.
See IBFS File No. SES-STA-20120815-00751 ("STA Request"). Telesat is authorized to
operate Ka-band satellites at the 118.7° W.L., 111.1°W.L., and 91° W.L. orbital locations.
Telesat confirms that the ViaSat operations have been coordinated with the Telesat satellite
networks and are not expected to cause unacceptable interference into the operations of the
Telesat networks.

Respectfully,




Elisabeth Neasmith, P. Eng
Manager ITU and Coordination
Office of CTO
Telesat




                Tel: 613-748-8700 • Fax:613-748-8712 • Information: http://www.telesat.com


Exhibit 2




Exhibit 3





Document Created: 2013-01-24 10:29:53
Document Modified: 2013-01-24 10:29:53

© 2024 FCC.report
This site is not affiliated with or endorsed by the FCC